Revert of Some linked_ptr removal in chromeos file_browser_handler.

Revert of Some linked_ptr removal in chromeos file_browser_handler. (patchset #5 id:80001 of https://codereview.chromium.org/2707193005/ )

Reason for revert:
This might be the cause of crash: crbug/696375

Original issue's description:
> Some linked_ptr removal in chromeos file_browser_handler.
> 
> BUG=556939
> 
> Review-Url: https://codereview.chromium.org/2707193005
> Cr-Commit-Position: refs/heads/master@{#453064}
> Committed: https://chromium.googlesource.com/chromium/src/+/37ab3be841440d4ec5abf1160acf32c905796d13

TBR=hirono@chromium.org,lazyboy@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=556939
Review-Url: https://codereview.chromium.org/2717213002
Cr-Commit-Position: refs/heads/master@{#453134}
Committed: https://chromium.googlesource.com/chromium/src/+/636f441be350ec76e73b4e4f407bf8a7e86984fd

[hajimehoshi, 2017-02-27 00:47:36]

The CQ bit was checked by hajimehoshi@chromium.org

[hajimehoshi, 2017-02-27 00:47:36]

Created Revert of Some linked_ptr removal in chromeos file_browser_handler.

[commit-bot: I haz the power, 2017-02-27 00:47:48]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-02-27 01:16:32]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488156456411150, "parent_rev":
"53f9f4ee5790ce47bf43eee521fdd3536cd1763a", "commit_rev":
"636f441be350ec76e73b4e4f407bf8a7e86984fd"}

[commit-bot: I haz the power, 2017-02-27 01:17:30]

Description was changed from

==========
Revert of Some linked_ptr removal in chromeos file_browser_handler. (patchset #5
id:80001 of https://codereview.chromium.org/2707193005/ )

Reason for revert:
This might be the cause of crash: crbug/696375

Original issue's description:
> Some linked_ptr removal in chromeos file_browser_handler.
> 
> BUG=556939
> 
> Review-Url: https://codereview.chromium.org/2707193005
> Cr-Commit-Position: refs/heads/master@{#453064}
> Committed:
https://chromium.googlesource.com/chromium/src/+/37ab3be841440d4ec5abf1160acf...

TBR=hirono@chromium.org,lazyboy@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=556939
==========

to

==========
Revert of Some linked_ptr removal in chromeos file_browser_handler. (patchset #5
id:80001 of https://codereview.chromium.org/2707193005/ )

Reason for revert:
This might be the cause of crash: crbug/696375

Original issue's description:
> Some linked_ptr removal in chromeos file_browser_handler.
> 
> BUG=556939
> 
> Review-Url: https://codereview.chromium.org/2707193005
> Cr-Commit-Position: refs/heads/master@{#453064}
> Committed:
https://chromium.googlesource.com/chromium/src/+/37ab3be841440d4ec5abf1160acf...

TBR=hirono@chromium.org,lazyboy@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=556939

Review-Url: https://codereview.chromium.org/2717213002
Cr-Commit-Position: refs/heads/master@{#453134}
Committed:
https://chromium.googlesource.com/chromium/src/+/636f441be350ec76e73b4e4f407b...
==========

[commit-bot: I haz the power, 2017-02-27 01:17:31]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/636f441be350ec76e73b4e4f407b...